“LGBTQ+ videos are available in restricted mode, but videos that discuss more sensitive issues may not be.

“We regret any confusion this has caused and are looking into your concerns.

“We appreciate your feedback and passion for making YouTube such an inclusive, diverse, and vibrant community.”

Matthew Hemes, Senior Social Media Manager for Pride in London said: “YouTube is an incredible space giving LGBTQ+ contributors around the world a platform to be heard.

“We are concerned that around 25 per cent of Pride in London’s video content is hidden when using YouTube’s ‘Restricted Mode’.

“Videos not shown include Prime Minister David Cameron’s message to those taking part in 2014, various videos from recent #NoFilter and #FreedomTo campaigns plus many performances on stage in Trafalgar Square.

“YouTube has been a fantastic supporter of Pride in London and we hope this is rectified soon.”